TRANSITIONS

作品数:464被引量:341H指数:8
导出分析报告
相关作者:马建辉吴丹周丹娜贾砚萍张立敏更多>>
相关机构:中国石油大学(北京)中国人民大学唐山师范学院中国科学技术大学更多>>
相关期刊:更多>>
相关基金:国家自然科学基金国家重点基础研究发展计划中国博士后科学基金北京市自然科学基金更多>>
-

检索结果分析

结果分析中...
选择条件:
  • 期刊=Science Bulletinx
条 记 录,以下是1-10
视图:
排序:
Clear interaction mechanism between organic dyes and inorganic lanthanide-doped nanoparticles
《Science Bulletin》2021年第19期1942-1944,M0003,共4页Yangyang Du Dengfeng Peng Xian Chen 
supported by the National Natural Science Foundation of China(51802198)。
Lanthanide-doped nanoparticles,which contain lanthanide ions doped in an inorganic host,can generate wide wavelength range emissions corresponding to inner shell 4 f-4 f transitions of lanthanide ions[1–3].Unfortunat...
关键词:LANTHANIDE TRANSITIONS ABSORPTION 
The concentration quenching characteristics of ~5D_3-~7F_J and ~5D_4-~7F_J (J=0―6) transitions of Tb^(3+) in YBO_3:Tb^(3+) phosphor被引量:1
《Chinese Science Bulletin》2007年第16期2297-2300,共4页ZHANG JiaChi WANG YuHua ZHANG ZhiYa WANG DeYin CI ZhiPeng SUN YunKui 
Supported by the Program for New Century Talents in University of China (NCET, 04-0978);the Chinese Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP 20040730019)
The photoluminescence quenching behaviors of 5D3-7FJ and 5D4-7FJ (J = 0―6) transitions of Tb3+ in YBO3:Tb under 130―290 nm excitation were systematically investigated. The results revealed that the quenching concent...
关键词:光致发光猝熄 原子跃迁 原子结构  
Transitions of amorphous-crystalline-amorphous in bulk metallic glass under HP and HT
《Chinese Science Bulletin》2002年第2期100-101,共2页SUN Liling TKikegawa WANG Wenkui 
This work was supported by the National Natural Science Foundation of China (Grant Nos. 50171077, 10004014 and 10032040).
In-situ SR-XRD measurements revealed that the crystallization process in Zr41.2Ti13.8Cu12.5Ni10Be22.5 bulk metallic glass is significantly different from that in tradi-tional glasses. Subsequent heating at 10 GPa conv...
关键词:上口 
Reaction-diffusion processes
《Chinese Science Bulletin》1998年第17期1409-1420,共12页CHEN Mufa Beijing Normal University Beijing 100875, China 
ThisworkwassupportedinpartbytheNationalNaturalScienceFoundationofChina (GrantNo .196 310 6 0 ) ,QiuShiScienceandTechnologyFoundation ,SpecialResearchFoundationforDoctorateProgramofCollegesandUniversitesandMathematicalCenterofStateEducationCommission
The main progress made in the past dozen years or more in the study of reaction-diffusion (abbrev. RD) processes is surveyed. The processes are motivated from some typical models in the modern non-equilibrium statisti...
关键词:REACTION-DIFFUSION process ERGODICITY PHASE TRANSITIONS coupling. 
ENHANCEMENT EFFECT OF THE SATELLITE TRANSITIONS OF SPIN-3/2 NUCLEI IN POWDERS
《Chinese Science Bulletin》1990年第2期168-169,共2页李鲠颖 邬学文 
In spin-3/2 quadrupolar NMR systems, measurement of the satellite transitions (Ⅰ1/2) and may give information about quadrupole coupling parameters. In powder samples, the spectra of the satellite transitions cover ve...
关键词:TRANSITIONS resonant SPIN TENSOR MAGNET displayed apart 
MEASUREMENT OF SPONTANEOUS EMISSION BRANCHING RATIOS IN Mo(Ⅰ) TRANSITIONS BY LASER-INDUCED SENSITIZED FLUORESCENCE
《Chinese Science Bulletin》1989年第11期919-924,共6页金巨广 段忆翔 王松岳 黄本立 
I. TNTRODUCTIONThe emission spectroscopic method is usually used to measure spontaneous emission branching ratios. As emission spectra cannot be detected in atomic beams, the laser-induced fluorescence or ion detectio...
关键词:laser SPECTROMETRY FLUORESCENCE branching RATIO molybdenum. 
LASER-INDUCED FLUORESCENCE OF THE MOLECULE HCCI
《Chinese Science Bulletin》1988年第8期696-699,共4页邱元武 周士康 胡义华 史济良 李方琳 
Project supported by the Science Fund of Academia Sinica
Carbenes play a very important role in some reactions of organic syntheses. It is a new trend of researches in carbene chemistry to study the chemical reactions of electronically excited carbenes, of which the results...
关键词:excited spectroscopic LASER rotating BANDS HALIDE TRANSITIONS AVERAGING pumped Changchun 
BRANCHING PROCESSES WITH AUTOCATALYTIC PRODUCTION OF A CHEMICAL
《Chinese Science Bulletin》1987年第23期1652-,共1页郑小谷 
This letter deals with the branching processes with autocatalytic production of a chemical. We prove that the processes satisfy the Kolmogorov forward equation and there exist phase transitions. This offers an example...
关键词:satisfy LETTER branching POLISH KOLMOGOROV deals INFINITE TRANSITIONS symmetric 
A NEW PHASE OF Rb_2ZnCl_4
《Chinese Science Bulletin》1987年第17期1166-1169,共4页梁敬魁 车广灿 马文漪 姜彤弼 
Project supported by the Scientific Fund of the Director of Institute of Physics, Academia Sinica
I. INTRODUCTION In recent years, the A2BX4-type crystals have attracted much attention, for they have a series of phase transitions, especially the incommensurate phase in a certain temperature range. K2SeO4 is the mo...
关键词:TRANSITIONS EVAPORATION heating deviation EXTINCTION belongs PHOTOGRAPH behaviour OCCASIONALLY prototype 
SUPERCONDUCTIVITY ABOVE LIQUID NITROGEN TEMPERATURE IN NEW OXIDE SYSTEMS被引量:8
《Chinese Science Bulletin》1987年第16期1098-1102,共5页赵忠贤 陈立泉 杨乾声 黄玉珍 陈赓华 唐汝明 刘贵荣 倪永明 崔长庚 陈烈 王连忠 郭树权 李山林 毕建清 王昌庆 
An important discovery of the superconductivity in Ba-La-Cu-O system with transition temperature 30-35 K has been made by Bednorz and Miiller.After that extensive studies in searching for the new series of related sup...
关键词:claimed HYDROSTATIC SEARCHING RESISTIVITY resistive termine TRANSITIONS helpful INDIUM sharply 
检索报告 对象比较 聚类工具 使用帮助 返回顶部